Pesticide composition for weeding and application thereof

Abstract

The invention relates to the technical field of pesticides, in particular to a pesticide composition for weeding and application thereof. The invention provides a pesticide composition. The pesticide composition comprises a component a, a component b and a component c, wherein the component a is quinclorac; the component b is 2, 4-D sodium butyrate; and the component c is atrazine or terbuthylazine. The compound herbicide provided by the invention combines quinclorac, 2, 4-D sodium butyrate and atrazine (or terbuthylazine), and the inventor finds that herbicides with different action mechanisms and herbicide controlling spectrums have a synergistic effect after combined action through a large number of experiments, the herbicide controlling spectrum is expanded, and weeds in sorghum fields can be effectively prevented and controlled. And a new medicament variety and a new selection approach are added for weed prevention and control in the sorghum field.

Description

Technical Field

[0001] This invention relates to the field of pesticide technology, and more particularly to a pesticide composition for weed control and its application. Background Technology

[0002] Sorghum is the most important crop in Northeast my country, serving as a preferred crop for farmers on certain plots and a crucial source of income. However, sorghum is characterized by poor herbicide resistance, sensitivity to most herbicides, and susceptibility to phytotoxicity, which is a major bottleneck restricting production. Currently, compared to the nearly 2,000 herbicide varieties registered for corn fields, the number of herbicides used for weed control in sorghum fields remains negligible. Summary of the Invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a pesticide composition for weed control and its application, which adds new types of pesticides and selection methods for weed control in sorghum fields.

[0004] This invention provides a pesticide composition comprising component a, component b, and component c:

[0005] Component a is dichloroquinoline acid;

[0006] Component b is sodium 2,4-D butyrate salt;

[0007] Component c is atrazine or terbutaline.

[0008] In some embodiments of the present invention, component a is dichloroquinoline acid, component b is sodium 2,4-dibutyrate, and component c is atrazine.

[0009] In some embodiments of the present invention, the mass ratio of dichloroquinoline acid, sodium 2,4-D butyrate, and atrazine is 4.5–8:4–7.5:9–13 (90–160:80–150:180–260); preferably 4.5–8:4:9 (90–160:80:180) or 8:7.5:9–13 (160:150:180–260), and more preferably 8:7.5:9 (160:150:180).

[0010] In some embodiments of the present invention, component a is dichloroquinoline acid, component b is sodium 2,4-D butyrate, and component c is tert-butylamine.

[0011] In some embodiments of the present invention, the mass ratio of dichloroquinoline acid, sodium 2,4-D butyrate and tertidine is 9-16:8-15:11-16 (90-160:80-150:110-160); preferably 9:8:11 (90:80:110) or 16:8-15:11-16 (160:80-150:110-160); more preferably 16:8:11 (160:80:110).

[0012] The present invention also provides an application of the pesticide composition described above in the preparation of herbicides.

[0013] In some embodiments of the present invention, the herbicide is a sorghum field herbicide.

[0014] The present invention also provides a pesticide formulation (herbicide) comprising the pesticide composition described above, and excipients acceptable for the pesticide formulation.

[0015] In some embodiments of the present invention, the pesticide formulation is in the form of a suspension emulsion (SE), an oil dispersible suspension (OD), or a wettable powder (WP); preferably a suspension emulsion.

[0016] In the pesticide composition, component a is quinclorac acid, component b is sodium 2,4-D butyrate, and component c is atrazine.

[0017] In some embodiments of the present invention, the pesticide formulation is a suspension emulsion, comprising, by weight:

[0018] 4.5–8 parts of dichloroquinoline acid, 4–7.5 parts of sodium 2,4-D butyrate, 9–13 parts of atrazine, 4–6 parts of dispersant, 8–15 parts of emulsifier, 0.5–2.5 parts of dispersing and suspending agent, and water to make up to 100 parts.

[0019] Preferred, including:

[0020] 8 parts dichloroquinoline acid, 7.5 parts sodium 2,4-D butyrate, 9 parts atrazine, 4-6 parts dispersant, 8-15 parts emulsifier, 0.5-2.5 parts dispersing and suspending agent, and water to make up to 100 parts.

[0021] Furthermore, preferably, including:

[0022] 8 parts dichloroquinoline acid, 7.5 parts sodium 2,4-D butyrate, 9 parts atrazine, 4.2 parts dispersant, 12 parts emulsifier, 0.5-1 parts dispersing and suspending agent, and water to make up to 100 parts.

[0023] Furthermore, preferred options include:

[0024] 8 parts dichloroquinoline acid, 7.5 parts sodium 2,4-D butyrate, 9 parts atrazine, 4.2 parts dispersant, 12 parts emulsifier, 0.5 parts dispersing and suspending agent, and water to make up to 100 parts.

[0025] In some embodiments of the present invention, the dispersant is OP-10 or WJ630.

[0026] In some embodiments of the present invention, the emulsifier is agricultural emulsion 601.

[0027] In some embodiments of the present invention, the dispersing suspending agent is xanthan gum, soluble starch, or CMC.

[0028] In some embodiments of the present invention, the application rate of the pesticide formulation is 808.5–1029.0 g a.i. / hm. 2 .

[0029] In the pesticide composition, when component a is quinclorac acid, component b is sodium 2,4-D butyrate, and component c is terbutaline:

[0030] In some embodiments of the present invention, the pesticide formulation is a suspension emulsion, comprising, by weight:

[0031] 9-16 parts of dichloroquinoline acid, 8-15 parts of sodium 2,4-D butyrate, 11-16 parts of tertidine, 3-7 parts of dispersant, 9-16 parts of emulsifier, 0.4-2.0 parts of dispersing and suspending agent, and water to make up to 100 parts.

[0032] Preferred, including:

[0033] 16 parts dichloroquinoline acid, 8 parts sodium 2,4-D butyrate, 11 parts tertidine, 3-7 parts dispersant, 9-16 parts emulsifier, 0.4-2.0 parts dispersant / suspending agent, and water to make up to 100 parts.

[0034] Furthermore, preferably, including:

[0035] 16 parts dichloroquinoline acid, 8 parts sodium 2,4-D butyrate, 11 parts tertidine, 6.5 parts dispersant, 15 parts emulsifier, 0.6-1.0 parts dispersing and suspending agent, and water to make up to 100 parts.

[0036] Furthermore, preferred options include:

[0037] 16 parts dichloroquinoline acid, 8 parts sodium 2,4-D butyrate, 11 parts tertidine, 6.5 parts dispersant, 15 parts emulsifier, 0.6 parts dispersing and suspending agent, and water to make up to 100 parts.

[0038] In some embodiments of the present invention, the dispersant is Amiet 320 or Tagar L.

[0039] In some embodiments of the present invention, the emulsifier is Ningru 33 or Nongru 1601.

[0040] In some embodiments of the present invention, the dispersing suspending agent is carboxymethyl cellulose (CMC) or xanthan gum.

[0041] In some embodiments of the present invention, the application rate of the pesticide formulation is 630.0–945.0 g a.i. / hm. 2 .

[0042] The compound herbicide provided by this invention combines quinclorac acid, sodium 2,4-D butyrate, and atrazine (or terbutaline). Through extensive experimentation, the inventors discovered that these herbicides, with their different mechanisms of action and weed-killing spectra, not only exhibit synergistic effects when combined, but also broaden the weed-killing spectrum, effectively controlling weeds in sorghum fields. This adds a new type of herbicide and selection pathway for weed control in sorghum fields. Detailed Implementation

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] This invention is the first to screen and apply the formulation of quinclorac acid, sodium 2,4-D butyrate, and atrazine (or terbutaline). It clarifies that the combined effect of these three compounds has an additive or synergistic effect, thus broadening the herbicidal spectrum.

[0045] Among them, dichloroquinoline acid, sodium 2,4-D butyrate, and atrazine showed no antagonistic effect within a mass ratio of 4.5–8:4–7.5:9–13 (90–160:80–150:180–260), exhibiting additive or synergistic effects; within a mass ratio of 4.5–8:4:9 (90–160:80:180) or 8:7.5:9–13 (160:150:180–260), no antagonistic effect was observed. Within the range of 0), the herbicide showed synergistic effects against annual grass weeds such as barnyardgrass, annual broadleaf weeds such as amaranth, and lambsquarters; this range is considered the optimal ratio range. At a mass ratio of 8:7.5:9 (160:150:180), the overall performance was considered the best, and this ratio was determined to be the optimal ratio. Based on this, formulation screening and field validation trials were conducted to determine the technical indicators such as the compound formulation of the three herbicide groups, field application methods, and dosage.

[0046] Furthermore, no antagonistic effect was observed among dichloroquinolinic acid, sodium 2,4-D butyrate, and terbutaline within a mass ratio range of 9–16:8–15:11–16 (90–160:80–150:110–160), indicating an additive or synergistic effect, suggesting the feasibility of combined application within this range. At mass ratios of 9:8:11 (90:80:110) or 16:8–15:11–16 (160:80–160), the combined effect was not observed. Within the range of 50:110 to 160, the ratio of each herbicide to other annual grasses (barnyardgrass, amaranth, and lambsquarters) showed synergistic effects, representing the optimal range. The ratio of 16:8:11 (160:80:110) was deemed the best overall, and this ratio was determined to be the optimal combination. Based on this, formulation screening and field validation trials were conducted to determine the formulation, field application methods, dosage, and other technical indicators for the three herbicide combinations.

[0047] The inventors conducted extensive research on the occurrence patterns and damage caused by weeds in sorghum fields. They gained a basic understanding of the general occurrence and severity of weed damage, and, in conjunction with ongoing research projects, completed the relevant experimental verifications for this application. Through indoor safety tests, combined activity tests, formulation exploration tests, and field efficacy tests, the optimal formulation, dosage form, and application method of the herbicide were preliminarily determined. Because the screening tests were quite complex, the results of the eliminated tests are not detailed here; only the screening process for the determined specific herbicide combinations and proportions is described in detail.

[0048] Example 1

[0049] Screening and evaluation methods

[0050] The theoretical fresh weight control efficacy E0 of each combination was calculated using the Colby method, and then compared with the measured control efficacy E to evaluate the combined effect type of the herbicides on weeds. The theoretical fresh weight control efficacy of the herbicides was calculated according to formula (1):

[0051]

[0052] In formula (1):

[0053] X—the fresh weight efficacy of herbicide 1 at a dosage of P;

[0054] Y—the fresh weight efficacy of herbicide 2 at a dosage of Q;

[0055] Z—the fresh weight efficacy of herbicide 3 at a dosage of R;

[0056] E0—Theoretical efficacy of herbicide 1 at dosage P + theoretical efficacy of herbicide 2 at dosage Q + theoretical efficacy of herbicide 3 at dosage R;

[0057] E—The actual control efficacy of herbicides 1, 2 and 3 when mixed in different proportions.

[0058] E-E0 > 10% indicates a synergistic effect; E-E0 < -10% indicates an antagonistic effect; and E-E0 values ​​between the theoretical value and ±10% indicate an additive effect.

[0059] Design and Results of Coefficient Screening Experiment

[0060] The specific statistical data of the screening test results are shown in Tables 1, 2, and 3.

[0061] Table 1. Combined effects of quinclorac acid, sodium 2,4-D butyrate, and atrazine / tertidine on barnyardgrass.

[0062]

[0063] Table 2. Combined effects of dichloroquinolinic acid, sodium 2,4-D butyrate, and atrazine / tert-butylamine on Amaranthus retroflexus.

[0064]

[0065]

[0066] Table 3. Combined effects of dichloroquinolinic acid, sodium 2,4-D butyrate, and atrazine / tertidine on lambsquarters.

[0067]

[0068] The experimental results show that:

[0069] The combined action of quinclorac acid, sodium 2,4-D butyrate, and atrazine showed no antagonistic effect on barnyard grass, amaranth, and lambsquarters, exhibiting additive or synergistic effects. Specifically, within a mass ratio of 4.5–8:4:9 (90–160:80:180) or 8:7.5:9–13 (160:150:180–260), the three components showed synergistic effects on annual grass weeds (barnyard grass), annual broadleaf weeds (amaranth), and lambsquarters; this range is considered the optimal ratio. The optimal ratio was determined to be 8:7.5:9 (160:150:180).

[0070] The combined action of quinclorac acid, sodium 2,4-D butyrate, and terbutaline showed no antagonistic effect on barnyard grass, amaranth, and lambsquarters, exhibiting additive or synergistic effects, indicating the feasibility of this combined application. Within the mass ratio range of 9:8:11 (90:80:110) or 16:8–15:11–16 (160:80–150:110–160), it showed synergistic effects on annual grass weeds (barnyard grass), annual broadleaf weeds (amaranth), and lambsquarters, representing the optimal ratio range. The 16:8:11 (160:80:110) mass ratio was deemed the best overall, and this ratio was determined to be the optimal combination.

[0071] Example 2

[0072] Dosage form screening test

[0073] 1. Dosage form screening of dichloroquinolinic acid·2,4-D sodium butyrate·atrazine compound preparation

[0074] Based on the above formulation experiments, this invention prepared several compound formulations of the three components, namely "dichloroquinoline acid·sodium 2,4-D butyrate·atrazine" (dichloro·D-butyrate·atrazine), using the optimal ratio of the three components. Suspension emulsions, dispersible oil suspensions, and wettable powders were screened using suspension rate and thermal storage stability as indicators. The screening results showed that suspension emulsions were the most ideal. The suspension rate and stability test results are shown in Table 4. Thermal storage stability was determined according to the national standard GB / T19136-2021.

[0075] Suspension 1 (24.5% dichloroquinoline acid, sodium 2,4-butyrate, and atrazine SE; wherein the mass content of dichloroquinoline acid, sodium 2,4-butyrate, and atrazine is 24.5%)

[0076] 8 parts by weight of dichloroquinoline acid, 7.5 parts by weight of sodium 2,4-D butyrate, 9 parts by weight of atrazine, 4 parts by weight of dispersant (OP-10), 8 parts by weight of emulsifier (agricultural emulsion 601), 0.5 parts by weight of dispersing and suspending agent (CMC), and water to make up to 100 parts by weight.

[0077] Suspension 2 (24.5% dichlorobutyric acid·atrazine SE)

[0078] 8 parts by weight of dichloroquinoline acid, 7.5 parts by weight of sodium 2,4-D butyrate, 9 parts by weight of atrazine, 4.2 parts by weight of dispersant (OP-10), 12 parts by weight of emulsifier (agricultural emulsion 601), 0.5 parts by weight of dispersing and suspending agent (xanthan gum), and water to make up to 100 parts by weight.

[0079] Suspension emulsion 3 (24.5% dichlorobutyric acid·atrazine SE)

[0080] 8 parts by weight of dichloroquinoline acid, 7.5 parts by weight of sodium 2,4-D butyrate, 9 parts by weight of atrazine, 6 parts by weight of dispersant (OP-10), 15 parts by weight of emulsifier (agricultural emulsion 601), 2.5 parts by weight of dispersing and suspending agent (xanthan gum), and water to make up to 100 parts by weight.

[0081] Dispersible oil suspension 1 (24.5% dichlorobutyric acid·atrazine OD)

[0082] 8 parts by weight of dichloroquinoline acid, 7.5 parts by weight of sodium 2,4-D butyrate, 9 parts by weight of atrazine, 5.0 parts by weight of emulsifier (Emulsogen M), 0.5 parts by weight of wetting agent (penetrating agent T), 3.0 parts by weight of dispersing and suspending agent (OP-10), 15 parts by weight of water, and 52 parts by weight of high-grade aliphatic hydrocarbon oil.

[0083] Wettable powder 1 (12.25% dichlorobutyric acid·atrazine WP)

[0084] 4 parts by weight of dichloroquinoline acid, 3.75 parts by weight of sodium 2,4-D butyrate, 4.5 parts by weight of atrazine, 4.2 parts by weight of wetting agent (SOPA), 3.5 parts by weight of dispersant (NNO), and carrier (bentonite) to make up to 100 parts by weight.

[0085] Table 4. Suspension Rate and Thermal Storage Stability Measurement Table

[0086]

[0087] 2. Dosage form screening of compound preparations of dichloroquinolinic acid, sodium 2,4-D butyrate, and terbutaline.

[0088] Based on the above proportioning experiments, this invention formulated several compound preparations of the three components, namely "dichloroquinoline acid·sodium 2,4-dip butyrate·tertidine" (dichloro·dip butyrate·tertidine), using the optimal ratio of the three components. Suspension emulsions, dispersible oil suspensions, and wettable powders were screened using suspension rate and thermal storage stability as indicators. The screening results showed that suspension emulsions were the most ideal. The suspension rate and stability test results are shown in Table 5. Thermal storage stability was determined according to the national standard GB / T19136-2021.

[0089] Suspension emulsion 4 (35% dichloroquinoline acid, sodium 2,4-butyrate and tertidine SE, wherein the mass content of dichloroquinoline acid, sodium 2,4-butyrate and tertidine is 35%)

[0090] 16 parts by weight of dichloroquinoline acid, 8 parts by weight of sodium 2,4-D butyrate, 11 parts by weight of tertidine, 3 parts by weight of dispersant (Amiet320), 9 parts by weight of emulsifier (Ningru33), 0.4 parts by weight of dispersing and suspending agent (xanthan gum), and water to make up to 100 parts by weight.

[0091] Suspension emulsion 5 (35% dichlorobutyric acid·Special SE)

[0092] 16 parts by weight of dichloroquinoline acid, 8 parts by weight of sodium 2,4-D butyrate, 11 parts by weight of tertidine, 6.5 parts by weight of dispersant (Amiet320), 15 parts by weight of emulsifier (Ningru33), 0.6 parts by weight of dispersing and suspending agent (CMC), and water to make up to 100 parts by weight.

[0093] Suspension Emulsion 6 (35% dichlorobutyric acid·Special SE)

[0094] 16 parts by weight of dichloroquinoline acid, 8 parts by weight of sodium 2,4-D butyrate, 11 parts by weight of tertidine, 7 parts by weight of dispersant (Amiet320), 16 parts by weight of emulsifier (Ningru33), 2.0 parts by weight of dispersing and suspending agent (CMC), and water to make up to 100 parts by weight.

[0095] Dispersible oil suspension 2 (17.5% dichlorobutyric acid·terbidioic acid·terbidioic acid)

[0096] 8 parts by weight of dichloroquinoline acid, 4 parts by weight of sodium 2,4-D butyrate, 5.5 parts by weight of tert-butylamine, 5.5 parts by weight of emulsifier (agricultural emulsion 1602), 2.5 parts by weight of dispersant (OP-10), 20 parts by weight of water, and 54.5 parts by weight of high-grade aliphatic hydrocarbon oil.

[0097] Wettable powder 2 (8.75% dichlorobutyric acid terpineol WP)

[0098] 4 parts by weight of dichloroquinoline acid, 2 parts by weight of sodium 2,4-D butyrate, 2.75 parts by weight of tert-butylamine, 5.25 parts by weight of wetting agent (SOPA), 5.0 parts by weight of dispersant (spreading powder), and carrier (71 parts by weight of diatomaceous earth + 10 parts by weight of silica).

[0099] Table 5. Suspension Rate and Thermal Storage Stability Measurement Table

[0100]

[0101] Example 3

[0102] Field safety trials and field efficacy trials against weeds

[0103] Field efficacy trials were conducted on the developed compound formulation, with the registered herbicide 28% dichlorodichloride OD as the control agent.

[0104] (1) Field efficacy and safety test of suspension emulsion 2 (24.5% dichlorobutyric acid·atrazine SE)

[0105] The control effect of 24.5% dichlorobutyric acid-atrazine SE on weeds in sorghum fields

[0106] Sorghum field trials:

[0107] At the time of application, the sorghum should have 4-6 leaves, and most weeds should have 2-6 leaves. The solution was diluted with 375 liters of water per hectare. After the dew had evaporated, the solution was sprayed evenly onto the stems and leaves. No rainfall occurred 12 hours after application. Surveys were conducted 15 and 30 days after application. The results showed that the effective dosage of 24.5% dichlorobutyric acid (DDVP) atrazine (SE) was 808.5–1837.5 g a.i. / hm². 2 Foliar spraying is an effective and efficient method for controlling weeds in sorghum fields, with a dosage of 918.8 g ai / hm. 2 Compared with the local standard control agent 28% dichlorophenoxyacetic acid, OD1092 g ai / hm 2 Compared with the control, the efficacy was more than 4% higher, and the amount of pesticide applied was reduced by 15.8%. Specific test data are shown in Tables 6 and 7.

[0108] Table 6. Control effect of 24.5% dichlorobutyric acid-atrazine SE on weeds in sorghum fields (15 days)

[0109]

[0110] Note that other plants include Polygonum hydropiper, pigweed, Kochia scoparia, Solanum nigrum, and Amaranth.

[0111] Table 7. Control effect of 24.5% dichlorobutyric acid-atrazine SE on weeds in sorghum fields (30 days)

[0112]

[0113]

[0114] Note that other plants include Polygonum hydropiper, pigweed, Kochia scoparia, Solanum nigrum, and Amaranth.

[0115] (2) Safety of suspension emulsion 2 (24.5% dichlorobutyric acid·atrazine SE) on sorghum

[0116] Twenty-one days after field application, the fresh weight of sorghum in each treatment was measured, and the occurrence of phytotoxicity was observed. The results showed that 24.5% dichlorobutyric acid (DDTA) at a dosage of 808.5–1029.0 g ai / hm² was effective. 2 Within the specified range, no adverse effects were observed on the fresh weight of sorghum plants, and the differences were not significant compared with areas treated with commonly used local herbicides and manual weeding. The double-dose treatment area had an application rate of 1837.5 g ai / hm². 2 It has an inhibitory effect on sorghum growth. Regarding the safety of sorghum, the application dosage is 808.5–1029.0 g a.i. / hm². 2 This is advisable. Specific experimental data are shown in Table 8.

[0117] Table 8 Safety of 24.5% dichlorobutyric acid-atrazine (DDI) SE on sorghum

[0118]

[0119] (3) Field efficacy and safety test of suspension emulsion 5 (35% dichlorobutyric acid·terephthalic acid·terephthalic acid SE)

[0120] 35% dichlorobutyric acid-tert-SE for the control of annual weeds in sorghum fields

[0121] Sorghum field trials:

[0122] At the time of application, the sorghum should have 4-6 leaves, and most weeds should have 2-6 leaves. The solution was diluted with 375 liters of water per hectare. After the dew had evaporated, the solution was sprayed evenly onto the stems and leaves. No rainfall occurred 12 hours after application. Surveys were conducted 15 and 30 days after application. The results showed that the effective dosage of 35% dichlorobutyric acid (DDTA)·terbinafine SE was 630.0–1575.0 g ai / hm². 2 Foliar spraying is an effective and efficient method for controlling weeds in sorghum fields, with a dosage of 787.5 g ai / hm. 2 Compared with the local standard control agent 28% dichlorophenoxyacetic acid, OD1092 g ai / hm 2 In comparison, the control efficacy was slightly higher, but the difference was not significant, and the application rate was reduced by 27%. Specific experimental data are shown in Tables 9 and 10.

[0123] Table 9. Control effect of 35% dichlorobutyric acid-tert-SE on weeds in sorghum fields (15 days)

[0124]

[0125] Note that other plants include pigweed, kochia, water thorn, and black nightshade.

[0126] Table 10. Control effect of 35% dichlorobutyric acid-tert-SE on weeds in sorghum fields (30 days)

[0127]

[0128] Note that other plants include pigweed, kochia, water thorn, black nightshade, and hops.

[0129] (4) Safety of suspension emulsion 5 (35% dichlorobutyric acid·terephthalic acid·terephthalic acid) on sorghum growth

[0130] Twenty-one days after field application, the fresh weight of sorghum in each treatment was measured, and the occurrence of phytotoxicity was observed. The results showed that 35% dichlorobutyric acid (DDTA) with a dosage of 630.0–945.0 g ai / hm² was effective. 2Within the specified range, no adverse effects were observed on the fresh weight of sorghum plants, and the differences were not significant compared with areas treated with commonly used local herbicides and manual weeding. The double-dose treatment area had a concentration of 1575.0 g a.i. / hm². 2 It has an inhibitory effect on sorghum growth. Regarding the safety of sorghum, the application dosage is 630.0–945.0 g ai / hm. 2 This is advisable. See Table 11 for specific data.

[0131] Table 11 Safety of 35% dichlorobutyric acid (DDTA) with sorghum

[0132]

[0133] The descriptions of the above embodiments are merely illustrative of the methods and core ideas of the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pesticide composition comprising component a, component b, and component c: Component a is dichloroquinoline acid; Component b is sodium 2,4-D butyrate salt; Component c is atrazine or terbutaline.

2. The pesticide composition according to claim 1, characterized in that, When component a is dichloroquinoline acid, component b is sodium 2,4-di(t)butyrate, and component c is atrazine... The mass ratio of dichloroquinoline acid, sodium 2,4-D butyrate, and atrazine is 4.5–8:4–7.5:9–13. When component a is dichloroquinoline acid, component b is sodium 2,4-dibutyrate, and component c is tert-butylamine, then... The mass ratio of dichloroquinoline acid, sodium 2,4-D butyrate, and tertidine is 9–16:8–15:11–16.

3. The pesticide composition according to claim 2, characterized in that, The mass ratio of dichloroquinoline acid, sodium 2,4-butyrate, and atrazine is 8:7.5:9; The mass ratio of dichloroquinoline acid, sodium 2,4-D butyrate, and tertidine is 16:8:

11.

4. The use of the pesticide composition according to any one of claims 1 to 3 in the preparation of herbicides.

5. The application according to claim 4, characterized in that, The herbicide in question is a sorghum field herbicide.

6. A pesticide formulation comprising the pesticide composition according to any one of claims 1 to 3, and excipients acceptable for use in the pesticide formulation.

7. The pesticide formulation according to claim 6, characterized in that, The pesticide formulation is in the form of a suspension emulsion, a dispersible oil suspension, or a wettable powder.

8. The pesticide formulation according to claim 7, characterized in that, The suspension emulsion comprises, by weight, the following: 4.5–8 parts of dichloroquinoline acid, 4–7.5 parts of sodium 2,4-D butyrate, 9–13 parts of atrazine, 4–6 parts of dispersant, 8–15 parts of emulsifier, 0.5–2.5 parts of dispersing and suspending agent, and water to make up to 100 parts; or The suspension emulsion comprises, by weight, the following: 9-16 parts of dichloroquinoline acid, 8-15 parts of sodium 2,4-D butyrate, 11-16 parts of tertidine, 3-7 parts of dispersant, 9-16 parts of emulsifier, 0.4-2.0 parts of dispersing and suspending agent, and water to make up to 100 parts.

9. The pesticide formulation according to claim 8, characterized in that, The suspension emulsion comprises, by weight, the following: 8 parts of dichloroquinoline acid, 7.5 parts of sodium 2,4-D butyrate, 9 parts of atrazine, 4.2 parts of dispersant, 12 parts of emulsifier, 0.5 parts of dispersing and suspending agent, and water to make up to 100 parts; or The suspension emulsion comprises, by weight, the following: 16 parts dichloroquinoline acid, 8 parts sodium 2,4-D butyrate, 11 parts tertidine, 6.5 parts dispersant, 15 parts emulsifier, 0.6 parts dispersing and suspending agent, and water to make up to 100 parts.

10. The pesticide formulation according to claim 9, characterized in that, In the pesticide composition, when component a is quinclorac acid, component b is sodium 2,4-D butyrate, and component c is atrazine, the application rate of the pesticide formulation is 808.5–1029.0 g ai / hm. 2 ; In the pesticide composition, when component a is quinclorac acid, component b is sodium 2,4-D butyrate, and component c is terbutaline, the application rate of the pesticide formulation is 630.0–945.0 g ai / hm. 2 .

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